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Finding the Third Proportional to 265,173.75 and 419,904

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Solution

The third proportional to 265,173.75 and 419,904 is: 664,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,173.75 : 419,904 = 419,904 : x
  2. Step 2: Convert to fraction form
    265,173.75/419,904 = 419,904/x
  3. Step 3: Cross multiply
    265,173.75x = 419,904 × 419,904
  4. Step 4: Simplify right side
    265,173.75x = 176,319,369,216
  5. Step 5: Solve for x
    x = 176,319,369,216/265,173.75
  6. Step 6: Final answer
    x = 664,920.15

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.